Vial



FIG. 1 is a perspective view of the vial of my new design;

FIG. 2 is a top plan view of the vial shown in FIG. 1;

FIG. 3 is a side elevational view of the vial shown in FIG. 1; and,

FIG. 4 is a bottom plan view of the vial shown in FIG. 3. 

The ornamental design for a vial, as shown and described. 